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- Publications
- Influence
A GRAVITATIONAL REDSHIFT DETERMINATION OF THE MEAN MASS OF WHITE DWARFS. DA STARS
- R. E. Falcon, D. Winget, M. Montgomery, K. Williams
- Physics
- 10 February 2010
We measure apparent velocities (v app) of the Hα and Hβ Balmer line cores for 449 non-binary thin disk normal DA white dwarfs (WDs) using optical spectra taken for the European Southern Observatory… Expand
A new class of pulsating white dwarf of extremely low mass: The fourth and fifth members
- J. Hermes, M. Montgomery, +7 authors B. G. Castanheira
- Physics
- 30 September 2013
We report the discovery of two new pulsating extremely low-mass (ELM) white dwarfs (WDs), SDSS J161431.28+191219.4 (hereafter J1614) and SDSS J222859.93+362359.6 (hereafter J2228). Both WDs have… Expand
SDSS J184037.78+642312.3: The First Pulsating Extremely Low Mass White Dwarf
- J. Hermes, M. Montgomery, D. Winget, Warren R. Brown, M. Kilic, S. Kenyon
- Physics
- 5 April 2012
We report the discovery of the first pulsating extremely low mass (ELM) white dwarf (WD), SDSS J184037.78+642312.3 (hereafter J1840). This DA (hydrogen-atmosphere) WD is by far the coolest and the… Expand
Discovery of pulsations, including possible pressure modes, in two new extremely low mass, He-core white dwarfs
- J. Hermes, M. Montgomery, +6 authors S. Harrold
- Physics
- 5 November 2012
We report the discovery of the second and third pulsating extremely low mass white dwarfs (WDs), SDSS J111215.82+111745.0 (hereafter J1112) and SDSS J151826.68+065813.2 (hereafter J1518). Both have… Expand
White Dwarf Rotation as a Function of Mass and a Dichotomy of Mode Line Widths: Kepler Observations of 27 Pulsating DA White Dwarfs through K2 Campaign 8
- J. Hermes, B. Gaensicke, +15 authors S. Redfield
- Physics
- 20 September 2017
We present photometry and spectroscopy for 27 pulsating hydrogen-atmosphere white dwarfs (DAVs; a.k.a. ZZ Ceti stars) observed by the Kepler space telescope up to K2 Campaign 8, an extensive… Expand
Redefining the empirical ZZ Ceti instability strip
- A. Mukadam, D. Winget, T. Hippel, M. Montgomery, S. O. Kepler, A. Costa
- Physics
- 28 May 2004
We use the new ZZ Ceti stars (hydrogen-atmosphere white dwarf variables; DAVs) discovered within the Sloan Digital Sky Survey (Mukadam et al. 2004) to redefine the empirical ZZ Ceti instability… Expand
Whole earth telescope observations of the DBV white dwarf GD 358
We report on the analysis of 154 hours of early continuous high-speed photometry on the pulsating DB white dwarf (DBV) GD 358, obtained during the Whole Earth Telescope (WET) run of 1990 May. The… Expand
Binaries discovered by the SPY project - IV. Five single-lined DA double white dwarfs
- G. Nelemans, R. Napiwotzki, +8 authors D. Reimers
- Physics
- 10 June 2005
We present results from our ongoing follow-up observations of double white dwarf binaries detected in the ESO SN Ia Progenitor SurveY (SPY). We discuss our observing strategy and data analysis and… Expand
THE EFFECT OF CRYSTALLIZATION ON THE PULSATIONS OF WHITE DWARF STARS
- M. Montgomery, D. Winget
- Physics
- 3 July 1999
We consider the pulsational properties of white dwarf star models with temperatures appropriate for the ZZ Ceti instability strip and with masses large enough that they should be substantially… Expand
Ensemble Characteristics of the ZZ Ceti Stars
- A. Mukadam, M. Montgomery, D. Winget, S. O. Kepler, J. Clemens
- Physics
- 1 October 2004
We present the observed pulsation spectra of all known noninteracting ZZ Ceti stars (hydrogen atmosphere white dwarf variables [DAVs]) and examine changes in their pulsation properties across the… Expand